Trivia

If the protagonist uses the Spider Donut or Spider Cider sold at the Spider Bake Sale during Muffet's fight, it will end the fight immediately.

If the protagonist buys an item from Hotland's Spider Bake Sale, Muffet will not engage in a fight with them.

If the protagonist buys the Spider Donut or Spider Cider from the Spider Bake Sale in Hotland on the Genocide Route, Muffet will acknowledge the generosity but engage in a fight regardless.

The Spider Bake Sale in Hotland is supporting the colony of spiders that Muffet says are trapped within the Ruins due to the cold climate of Snowdin that blocks them off from Hotland.

When checking the croissant, the text reads, "It looks like some sort of powerful bracelet." This quote is a reference to the power bracelet from The Legend of Zelda: Link's Awakening, Oracle of Seasons, and Oracle of Ages, which looks like a croissant.

The spider web at the bottom right corner of Napstablook's house has a bake sale flyer on it.